*During the operation of NID off-world teams, Colonel Grieves and Lieutenant Kershaw had visited Latona in an attempt to steal the technology for the Sentinel, a defensive weapon capable of protecting the entire planet. Since then, Grieves and Kershaw have been convicted of high treason, and SG-9 has tried to restore diplomatic relations with the Latonoans. However, the planet is now under attack by Jaffa forces, and the Sentinel fails to activate. The earlier NID mission may have disabled the device, rendering the planet defenseless, and SG-1 must find a way to rescue the Latonans from attack. *Source: Back of card